枚举类型与集合类型
字段的值只能在给定范围中选择,如单选框,多选框
enum 单选 只能在给定的范围内选一个值,如性别 sex 男male/女female
set 多选 在给定的范围内可以选择一个或一个以上的值(爱好1,爱好2,爱好3...)
MariaDB [db1]> create table consumer(
-> name varchar(50),
-> sex enum(‘male‘,‘female‘),
-> level enum(‘vip1‘,‘vip2‘,‘vip3‘,‘vip4‘,‘vip5‘), #在指定范围内,多选一
-> hobby set(‘play‘,‘music‘,‘read‘,‘study‘) #在指定范围内,多选多
-> );
MariaDB [db1]> insert into consumer values
-> (‘egon‘,‘male‘,‘vip5‘,‘read,study‘),
-> (‘alex‘,‘female‘,‘vip1‘,‘girl‘);
MariaDB [db1]> select * from consumer;
+------+--------+-------+------------+
| name | sex | level | hobby |
+------+--------+-------+------------+
| egon | male | vip5 | read,study |
| alex | female | vip1 | |
+------+--------+-------+------------+
原文地址:https://www.cnblogs.com/sunny666/p/10019457.html
时间: 2024-11-07 23:42:32